2D Arrays

[calisabeth]

When I run my program it says there is error due to an infinite loop. Where is the issue at and how do I fix it?

  #include <iostream>
using namespace std;

int main( ) {
   const int NUM_ROWS = 2;
   const int NUM_COLS = 2;
   int milesTracker[NUM_ROWS][NUM_COLS];
   int i = 0;
   int j = 0;
   int maxMiles = -99; // Assign with first element in milesTracker before loop
   int minMiles = -99; // Assign with first element in milesTracker before loop

   milesTracker[0][0] = -10;
   milesTracker[0][1] = 20;
   milesTracker[1][0] = 30;
   milesTracker[1][1] = 40;

   /* Your solution goes here  */
   maxMiles = 0;
   minMiles = 0;
for(i=0;i<NUM_ROWS;++i){
      for(j=0;i<NUM_COLS;++j){
             if (milesTracker[i][j]<minMiles){
                   minMiles = milesTracker[i][j];
            }
             else if (milesTracker[i][j] > maxMiles){
                   maxMiles = milesTracker[i][j];
            }
   } 
}

    cout << "Min miles: " << minMiles << endl;
    cout << "Max miles: " << maxMiles << endl;
}

[MrGoat]

The problem is that it looks like you wrote out the outter loop then copied it for the inner loop but did not fully update the loop declaration.

[ats15]

On line 22 J<Num_COLS, not i

[calisabeth]

@ ats15 I changed but then when running the tests, one test came back with an error where:
Testing with milesTracker = {{-5}, {-93}, {-259}}
Expected output : Min miles: -259
Max miles: -5

My output: Min miles: -259
Max miles: 0

I'm not sure how to fix the error.

[fg109]

Read the comments on lines 10 and 11. Look at the code on lines 19 and 20.